Tangzu Waner S.G vs TRN CS4: which should you buy?

On aggregated review scores the Tangzu Waner S.G comes out ahead with a HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Tangzu Waner S.G - Outstanding overall at around $19.

Wired IEMs

Tangzu Waner S.G

82Outstanding

$19

Full review data

Wired IEMs

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Tangzu Waner S.G leads on 4 of 5 measures.

Tangzu Waner S.G
TRN CS4

HearWiki score

Sound

8.0

4.8

Calls

4.5

Value

9.5

6.8

Price (USD)

$19

$10

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

Both shipped in 2022. These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

Waner S.G2022
CS42022

Specifications

Waner S.GCS4

Type: Wired IEMs; Wired IEMs
Price (USD): $19; $10
HearWiki score: 82; 50
Released: 2022; 2022
Availability: Still sold new; Still sold new
Driver: 10 mm dynamic; 10 mm dynamic
Driver type: dynamic; dynamic
Driver size: 10 mm; 10 mm
Drivers per side: -; 1
Frequency response: -; 20 Hz - 20 kHz
Impedance: 20 Ω; 23 Ω
Sensitivity: -; 118 dB/mW
Active noise cancelling: -; No
Weight: 4 g; 4.2 g
Detachable cable: -; Yes
USB-C: -; Yes
Connector: -; 2-pin 0.78 mm

Specification comparison of Tangzu Waner S.G vs TRN CS4
Spec	Tangzu Waner S.G	TRN CS4
Type	Wired IEMs	Wired IEMs
Price (USD)	$19	$10
HearWiki score	82 / 100 Outstanding	50 / 100 Weak
Released	2022	2022
Audio
Driver	10 mm dynamic	10 mm dynamic
Driver type	dynamic	dynamic
Driver size	10 mm	10 mm
Drivers per side	-	1
Frequency response	-	20 Hz - 20 kHz
Impedance	20 Ω	23 Ω
Sensitivity	-	118 dB/mW
Features
Active noise cancelling	-	No
Design
Weight	4 g	4.2 g
Detachable cable	-	Yes
USB-C	-	Yes
Connector	-	2-pin 0.78 mm

What reviewers said

Tangzu Waner S.G

The Tangzu Waner S.G is a budget-friendly wired IEM with a compact, lightweight build and a 10mm dynamic driver. Its tuning leans warm and smooth, offering a relaxed, music-first sound that punches well above its price point for everyday listening.

Pro:Warm, easygoing sound signature
Pro:Very lightweight and compact
Pro:Detachable 0.78mm two-pin cable

Con:No active noise cancellation
Con:Lacks water resistance
Con:Not for those seeking technical detail

TRN CS4

The TRN CS4 is a very affordable wired IEM built around a single 10mm dynamic driver. It delivers energetic treble and respectable detail for the price, though its stock tuning can come across as sharp; with some tweaks, it offers surprisingly good imaging and soundstage for a budget model. A lightweight, detachable-cable design adds value at this low cost.

Pro:Strong treble energy
Pro:Decent detail retrieval
Pro:Surprisingly good imaging and soundstage for the price

Con:Can sound harsh out of the box
Con:Not especially polished stock tuning
Con:Limited frequency range

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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